Test method for glass stress
AssigneeSamsung Display Co., Ltd.
InventorsMin Ki Kim, Ji Hyun Ko, Yong Kyu Kang, Jinsu Nam, Hyun Seung Seo, Jun Ho Lee
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Abstract
A glass stress test method includes breaking a glass, analyzing a shape of a crack of a broken portion of the glass in a plan view, finding a breakage origin of the glass based on the shape of the crack in the plan view, analyzing a cross-section of the breakage origin, and calculating a stress of the glass based on a cross-sectional analysis result of the breakage origin. The stress of the glass is calculated as a value proportional to a floor constant defined by a condition of a floor surface disposed when the glass is broken.
Claims20
A glass stress test method comprising:
- breaking a glass by dropping a structure to which the glass is attached, the glass facing a floor surface;
- analyzing a shape of a crack of a broken portion of the glass in a plan view;
- finding a breakage origin of the glass based on the shape of the crack in the plan view;
- analyzing a cross-section of the breakage origin;
- and
- calculating a stress of the glass based on a cross-sectional analysis result of the breakage origin,
- wherein the stress of the glass is calculated as a value proportional to a floor constant defined by a condition of the floor surface.
A glass stress test method comprising:
- positioning sandpaper on a floor surface and positioning a glass on the sandpaper;
- breaking the glass by dropping a ball onto the glass;
- analyzing a shape of a crack of a broken portion of the glass in a plan view;
- finding a breakage origin of the glass based on the shape of the crack in the plan view;
- analyzing a cross-section of the breakage origin;
- and
- calculating a stress of the glass based on a cross-sectional analysis result of the breakage origin,
- wherein the stress of the glass is calculated as a value proportional to a floor constant defined by a condition of the floor surface.
A glass stress test method comprising:
- breaking a glass;
- analyzing a shape of a crack of a broken portion of the glass in a plan view;
- finding a breakage origin of the glass based on the shape of the crack in the plan view;
- analyzing a cross-section of the breakage origin;
- and
- calculating a stress of the glass based on a cross-sectional analysis result of the breakage origin,
- wherein the cross-section of the breakage origin includes
- a mirror region including a smooth surface which has a smoothness substantially identical to a smoothness of a mirror and an opaque mist region disposed around the mirror region, and
- the stress of the glass is calculated as a value proportional to a floor constant defined by a condition of a floor surface provided when the glass is broken.
Dependencies are inferred from the claim text.